Mainly when you divide by a fraction - that is equivalent to multiplying by its reciprocal.
To divide by a fraction, you multiply by its reciprocal. This is related to the facts that (1) division is the opposite of multiplication, and (2) a reciprocal is the multiplicative "opposite" of a number.
You do not need it! Sometimes it is simpler to multiply by a number's reciprocal than to divide by it but that is not always the case.
To divide a fraction by a fraction, multiply the first fraction by the reciprocal of the second one.
Reciprocal just means that you flip the fraction... your fraction is -p/4 the reciprocal is 4/-p the reciprocal is extremely important when dividing fractions. because when you divide fractions you have to take the reciprocal of the bottom fraction and then multiply it to your top fraction to get your answer.
*divide transform the mixed number into a fraction and then divide like a normal fraction (multiply by reciprocal).
Multiply by the reciprocal.
You multiply the negative number by the reciprocal of the fraction.
Division is multiply by the reciprocal.
To divide by a fraction, you multiply with its reciprocal.
It's easier to multiply the reciprocal.
To divide by a fraction, multiply by that fraction's reciprocal. 2/3 divided by 3/4 = 2/3 x 4/3